Phenotypical characterization in "Plasmopara halstedii" (sunflower downy mildew) isolates of several races
| Data(s) |
29/09/2015
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| Resumo |
Phenotypic variation (morphological and pathogenic characters), and genetic variability were studied in 50 isolates of seven Plasmopara halstedii (sunflower downy mildew) races 100, 300, 304, 314, 710, 704 and 714. There were significant morphological, aggressiveness, and genetic differences for pathogen isolates. However, there was no relationship between morphology of zoosporangia and sporangiophores and pathogenic and genetic characteristics for the races used in our study. Also, our results provided evidence that no relation between pathogenic traits and multilocus haplotypes may be established in P. halstedii. The hypothesis explaining the absence of relationships among phenotypic and genetic characteristics is discussed. Se ha estudiado la variación fenotípica (caracteres morfológicos y patógenos) y la variabilidad genética de 50 aislamientos de las razas 100, 300, 304, 314, 710, 704 y 714 de Plasmopara halstedii (mildiu del girasol). Se han encontrado diferencias significativas en la morfología, la agresividad y las variaciones genéticas para los aislados patógenos. Sin embargo, no se ha encontrado relación entre la morfología de los zoosporangios y esporangióforos, y las características patogénicas y genéticas entre las razas estudiadas. También nuestros resultados aportan evidencia de que no existe relación entre los patógenos estudiados y los haplotipos con múltiples loci resistentes en P. halstedii. Se comenta la hipótesis explicativa de la ausencia de relaciones entre las características fenotípicas y genotípicas. |
| Formato |
application/pdf |
| Identificador |
http://revistas.ucm.es/index.php/BOCM/article/view/49129 10.5209/rev_BOCM.2015.v39.49129 |
| Publicador |
Ediciones Complutense |
| Relação |
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| Fonte |
Botanica Complutensis; Vol 39 (2015); 7-18 |
| Palavras-Chave | #Helianthus annuus; morphology; multilocus haplotypes; obligate parasite; pathogenicity. #Helianthus annuus; morfología; haplotipos con multiples loci; parásito obligado; patogenicidad. |
| Tipo |
info:eu-repo/semantics/article Artículo revisado por pares info:eu-repo/semantics/publishedVersion |
